Home / 30,202.81-45,279.27-13,323.79

Finding the Fourth Proportional to 30,202.81, 45,279.27 and 13,323.79

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Solution

The fourth proportional to 30,202.81, 45,279.27 and 13,323.79 is: 19,974.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,202.81 : 45,279.27 = 13,323.79 : x
  2. Step 2: Convert to fraction form
    30,202.81/45,279.27 = 13,323.79/x
  3. Step 3: Cross multiply
    30,202.81x = 45,279.27 × 13,323.79
  4. Step 4: Simplify right side
    30,202.81x = 603,291,541.43
  5. Step 5: Solve for x
    x = 603,291,541.43/30,202.81
  6. Step 6: Final answer
    x = 19,974.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.